Urusei Yatsura Inaba the Dreammaker

It is summertime and Shinobu laments not having a boyfriend She then happens upon a young man weak from hunger and wearing a rabbit costume She gives him a carrot he expresses his gratitude by hitting on her and she hits back The young man leaves behind a key to another dimension where everybodys possible futures exist Lum and Ataru join Shinobu to find the bunny boy and happy futures for themselves